Benthowave Instrument BII2170 Series Manual

SE=SL-TL+AG-NL
BII2171WR
BII2171WR
A BII2170 Series T/R switch module is an integrated solution for a wide range of acoustic applications based on Emitting and Listening Timing Techniques. The device
works at active mode (Transmitting Sounds) and passive mode (Listening Sounds) with a transducer which can radiate and receive sounds. A BII2170 device integrates
an impedance matching network, a T/R switch, a bandpass filter, and a low noise DPGA preamplifier (Digitally Programmable Gain Amplifier) or a Fixed Gain Amplifier
(FGA) into one compact housing. Gain-selection is accomplished by a two-bit or one-bit digital word (TTL/CMOS level compatible). The built-in impedance matching
network is customized to match impedance between the power amplifier and the transducer at operating frequency, generally at resonance frequency fs.
Tips: Separation of transmitting element and receiving element below 1MHz can improve receiving performances such as lower noise level, optimum directivity, and
higher sensitivity etc. BII manufactures
Acoustic Transmitting and Receiving System with Untuned or 50Ω Transducers
Pulse Signal
Power Amplifier
Generator
DAQ with
AI and DO
Signal Sources:
Bioacoustic Sounds,
SONAR Signals,
Communication, Noise,
HIFU, Pulsing, etc.
2
Shutdown, if any.
DO
Feedback of Driving
Voltage, if any.
DAQ
AI
DO
AI
Emitting Signals for SONAR,
Communication, NDT, etc.
Trigger
Data Acquisition, Processing & Display.
Transmit & Listen Timing
Listen & Transmit Timing
Typical Applications
Echo Sounder (Navigation/Object Avoidance, Depth/Distance Sounder, Wave-height Sensor), Target Strength Measurement, Sub-bottom Profilers, Side-scan SONAR,
Fishery SONAR, Transponders, Positioning, Beacon, Communication and Telemetry, Artificial Acoustic Target, Acoustic Speedometers (Doppler SONAR), Sound Velocity
Profiler, Marine Bioacoustics, Acoustic Deterrent Devices, Ocean Current Profiling, Flow Meter, NDT (Non-destructive Test), Diagnostic Ultrasounds, Ultrasonic Test and
Analysis, Material Study.
Benthowave Instrument Inc.
Underwater Sound Solutions
BII2171WR
BII2171WR
BII2170 Series T/R (Transmitting and Receiving) Switch Modules for SONAR & NDT Transducers
transduces with separated transmitting elements and receiving elements
BII2170 Series
T/R Switch
Battery Pack DC Supply
Power Amplifier
DC Power Supply
BII2170 Series T/R Switch
Driving Untuned Transducers
Receiving Signals
First: Emit Sounds. Second: Listen Sounds.
Echoes or Received Sounds
First: Listen Sounds. Second: Emit
Received Sounds Emit Sounds
www.benthowave.com
BII2172MIL
BII2172MIL
50Ω Coax or
Shielded Cable
Male Connectors: MIL-5015, Underwater Connector, BNC, etc.
BII2170 Series
T/R Switch
Gain
Received
Selection
Signal
Gain Selection
50Ω Coax or
Shielded Cable
Sounds.
BII2173WR
FG
Accessories
to achieve better acoustic performances below 1MHz.
SONAR Projector,
NDT, HIFU, Power
Transducer
Untuned or 50Ω Transducer
Driving Signal
50Ω Coax or
Shielded Cable
Untuned or 50Ω Transducer
DUT
Transducer
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BII2173WR
FG
Sound
Waves
Liquid
NDT
DUT
Water